公开(公告)号：KR3008101710000S

公开(公告)日：2015-08-18

申请号：KR3020150008330

申请日：2015-02-16

Applicant: 기아자동차주식회사

Designer： 한학손 ,  공승태

公开(公告)号：KR1020130033726A

公开(公告)日：2013-04-04

申请号：KR1020110097587

申请日：2011-09-27

Applicant: 현대자동차주식회사 ,  기아자동차주식회사

Inventor： 공승태

IPC: F01N1/10 ,  F01N13/08

Abstract: PURPOSE: A composite noise reduction method muffler is provided to partition an internal space of the muffler into a high frequency noise reduction section using a glass wool and a specific frequency booming noise reduction section using a Helmholtz resonance action. CONSTITUTION: A composite noise reduction method muffler comprises a housing body(1) a baffle plate(4), a sound-absorbing material, and a resonator(10). A pipe where exhaust gas flows is penetrated through the housing body. The baffle plate is joined to the pipe and partitions the housing body into two front chamber(5) and a rear chamber(6). The sound-absorbing material is filled in the front chamber in a direction where the exhaust gas flows, thereby reducing noise of high frequencies with a sound-absorbing mode. The resonance discharges the exhaust gas to the rear chamber, thereby obtaining specific frequency booming noise reduction through a Helmholtz resonance action. [Reference numerals] (AA,CC) Inflow of exhaust gas; (BB,DD) Discharge of exhaust gas;

Abstract translation: 目的：提供一种复合噪声降低方法消音器，用消音器的内部空间将玻璃棉和特定频率繁多的降噪部分用亥姆霍兹共振作用分隔成高频降噪部分。 构成：复合噪声降低方法消声器包括壳体（1），挡板（4），吸声材料和谐振器（10）。 废气流过的管道穿过壳体。 挡板连接到管道并将壳体分隔成两个前室（5）和后室（6）。 吸音材料以排气流动的方向填充在前室中，从而以吸音模式降低高频噪声。 共振将废气排放到后室，从而通过亥姆霍兹共振作用获得特定的频率振荡噪声降低。 （附图标记）（AA，CC）排气的流入; （BB，DD）废气排放;